LandOfFree - US Patents - Listing for Metallurgical apparatus,Means for treating ores or for extracting metals,By means applying heat to work, e.g., furnace

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Smelting furnace for direct obtaining of copper from ore concent

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Stack for the thermal treatment of material

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Stave cooling device having unwelded double tube

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Stave for cooling of blast furnace walls and method of manufactu

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Stave for metallurgical furnace

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Steel cables driven furnace top chute feeder for blast furnace

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Reexamination Certificate

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Steelworks converter with cone cooling system

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Reexamination Certificate

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Sulfidization reaction

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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Supporting structure for blast furnaces

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Patent

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System for direct electrowinning of copper

Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace

Reexamination Certificate

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